# Demonstrate ImageList#average method
require 'rmagick'

images = Magick::ImageList.new('images/Button_A.gif', 'images/Button_B.gif', 'images/Button_C.gif')

group = images.append false
group.compression = Magick::LZWCompression
group.write 'average_before.gif'

average_image = images.average

average_image.compression = Magick::LZWCompression
average_image.write 'average_after.gif'
exit
